Combining Texts

You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'The Logical Structure of the World (Aufbau)' by Rudolph Carnap and 'On Fate ('De fato')' by M. Tullius Cicero

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All the ideas for Reason, or select a subheading:
      A. Nature of Reason
      B. Laws of Thought
      C. Styles of Reason
      D. Definition
      E. Argument
      F. Fallacies